Start by preheating your oven to 300°F (150°C). Pat the lamb shanks dry with paper towels and season them with salt, pepper, and herbs. Heat one tablespoon of olive oil in your Dutch oven over medium-high heat and sear the shanks on all sides until they’re nicely browned. This step locks in flavor and adds a beautiful caramelized crust. Remove the lamb and set aside.
Add the remaining olive oil and butter to the pot. Sauté the diced carrot and onion for a few minutes until softened and fragrant. Add the minced garlic and tomato paste, stirring until the tomato paste deepens in color. Sprinkle in the flour and cook for a minute to remove its raw taste — this will later help thicken the sauce.
Pour in the full bottle of red wine, scraping up any brown bits from the bottom of the pot. Add bay leaves, cinnamon stick, and star anise. Return the lamb shanks to the pot, ensuring the liquid comes about halfway up their sides. Bring to a gentle simmer, cover the pot, and transfer to the oven. Braise for 3 ½ – 4 hours, checking halfway through to ensure the liquid level remains sufficient. Add a splash of water or wine if it reduces too much.
While the lamb finishes cooking, prepare the gremolata. Combine chopped parsley, mint, lemon zest, lemon juice, minced garlic, and salt in a bowl. Mix well and let it sit at room temperature for about 20 minutes — this helps the flavors meld beautifully.
Once the lamb is fall-off-the-bone tender, remove the shanks and set aside. Strain the braising liquid through a fine mesh strainer into a saucepan. Discard the solids and simmer the liquid until it thickens slightly and becomes glossy. Taste and adjust seasoning with salt and pepper.
Place each lamb shank on a plate, spoon the rich sauce generously over it, and top with a sprinkle of fresh gremolata. The contrast of rich sauce and bright herbs makes every bite divine.